Gel prevention agents
AssigneeAkzo Nobel N.V.
InventorShawn Zhu
Life of this patent
Estimating the term…
Abstract
Gel prevention agents and methods for use with agricultural products include certain alkylamido amines and their quaternary ammonium counterparts that, when blended with products containing alkoxylated surfactants, the alkylamido amines and their quaternary counterparts reduce the gel formation tendency of such products.
Claims20
A formulation having reduced gel formation tendencies comprising:
- at least one gel forming alkoxylated surfactant;
- an agrochemically active ingredient;
- and
- a gel prevention surfactant,
- said gel prevention surfactant comprising at least one alkyl amidoamine derivative of formula (1), or at least one alkyl amidoamine quaternary derivative of formula (2), or mixtures thereof, wherein the alkyl amidoamine derivative of formula (1) is represented by the formula:
- where R is a linear or branched, saturated or unsaturated alkyl group having 2-22 carbon atoms;
- m is an integer of from 0-7;
- n is a integer of from 2-6;
- W and Y are independently chosen from H, hydroxyl, an alkyl group having 1-4 carbon atoms, a benzyl group or (AO)sH, where AO is an alkyleneoxy group having 2-4 carbon atoms, where s is on the average an integer of from 1-30;
- Z is independently chosen from H, hydroxyl, an alkyl group having 1-4 carbon atoms, a benzyl group, (AO)s H, where AO is an alkyleneoxy group having 2-4 carbon atoms, where s is on the average an integer of from 1-30, or an acyl group;
- and said at least one alkyl amidoamine quaternary derivative of formula (2) is represented by the formula:
- where R1 is chosen from methyl or ethyl, X— is an agriculturally acceptable counter ion, q is an integer of from 1-6, m′ is an integer of 1-6, and R, W, n, Y, and Z are the same as above.
A method for reducing the gel formation tendency of a formulation which comprises at least one gel forming alkoxylated surfactant and an agrochemically active ingredient, said method comprising the incorporation, in said formulation, of at least one gel prevention surfactant, said gel prevention surfactant comprising at least one alkyl amidoamine derivative of formula (1), or at least one alkyl amidoamine quaternary derivative of formula (2), or mixtures thereof, wherein the alkyl amidoamine derivative of formula (1) is represented by the formula:
- where R is a linear or branched, saturated or unsaturated alkyl group having 2-22 carbon atoms;
- m is an integer of from 0-7;
- n is a integer of from 2-6;
- W and Y are independently chosen from H, hydroxyl, an alkyl group having 1-4 carbon atoms, a benzyl group or (AO)sH, where AO is an alkyleneoxy group having 2-4 carbon atoms, where s is on the average an integer of from 1-30;
- Z is independently chosen from H, hydroxyl, an alkyl group having 1-4 carbon atoms, a benzyl group, (AO)sH, where AO is an alkyleneoxy group having 2-4 carbon atoms, where s is on the average an integer of from 1-30, or an acyl group;
- and said at least one alkyl amidoamine quaternary derivative of formula (2) is represented by the formula:
- where R1 is chosen from methyl or ethyl, X— is an agriculturally acceptable counter ion, q is an integer of from 1-6, m′ is an integer of 1-6, and R, W, n, Y, and Z are the same as above.
Dependencies are inferred from the claim text.